So many Youtube DIYers don't know about concrete vibrators and do shitty concrete pours or add excessive water to make it more "flowy".
Mine was €60 from Ali and has done a fantastic job so far. Especially with casting against the old foundation it really gets the concrete flowing into the gaps between the stones to lock them in place. I see the air bubbles pop out of them when getting the tip near one and the concrete level drops as it flows in.
Same for making sure it flows into the extended footing and fills it.
It'll also make sure the rebar and anchor bolts are completely surrounded, which is essential for them to grip well.
Here's an example of the effect:
https://www.youtube.com/watch?v=S-Puk4RorDo
#Foundation #DIY #Renovation #Concrete #Vibrator #Tools #AliExpress